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公开(公告)号：US20230073658A1
公开(公告)日：2023-03-09
申请号：US17800035
申请日：2021-02-05
发明人： Zhang Fu , Markus Hanhisalo , Shabnam Sultana , Noamen Ben Henda
IPC分类号： H04L9/40
摘要： Security and privacy mechanisms are provided to protect the L2 identifiers used in groupcast communications over the sidelink (e.g., PC5 interface) without requiring a UE to periodically refresh the L2 identifiers, which may cause extra signaling overhead, increased latency and greater risk of synchronization issues. To prevent tracking of a UE, a group identifier (ID) is used as a source layer 2 (L2) ID in groupcast messages. Additionally, a message authentication code (MAC) is introduced into the group discovery procedure to authenticate the UE sending a group discovery request.
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公开(公告)号：US11601847B2
公开(公告)日：2023-03-07
申请号：US16954495
申请日：2017-12-21
发明人： Conny Larsson , Michael Eriksson , Zhang Fu
IPC分类号： H04W28/08 , H04L67/1008
摘要： A method performed by an agent for handling an event of a network service deployed in a cloud environment is provided. The agent is capable to access to a server in the cloud environment. The agent obtains information from the server. The information is about an event of the network service. When the network service relates to a Third Generation Partnership Project (3GPP) network, the agent decides whether to register network service with or without an associated address of a load balancer of the network service. The agent then registers in a core network node operating in the 3GPP network, the network service with or without an associated address of a load balancer of the network service according to the event and according to the outcome of the deciding.
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公开(公告)号：US20220232460A1
公开(公告)日：2022-07-21
申请号：US17615463
申请日：2019-05-31
发明人： Zhang Fu , Göran Rune
IPC分类号： H04W48/16 , H04W12/106
摘要： Embodiments of a method in a core network, corresponding embodiments of methods in a service consumer and service producer, and corresponding embodiments of a service consumer and service producer are disclosed. In some embodiments, a method in a core network comprises, at a service consumer, generating security information for a subscription to an event and sending a subscribe message comprising the security information to a service producer of the event. The method further comprises, at the service producer, receiving the subscribe message and sending a notification message to the service consumer, where the notification message comprises the event and either: the security information or information derived from the security information. The method further comprises, at the service consumer, receiving the notification message and verifying the notification message based on the security information or the information derived from the security information, comprised in the notification message.
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公开(公告)号：US20220095111A1
公开(公告)日：2022-03-24
申请号：US17420817
申请日：2019-01-04
发明人： Zhang Fu , Jari Arkko , Simone Ferlin , Patrik Salmela
IPC分类号： H04W12/08
摘要： Methods and systems for optimizing Network Function (NF) service authorization are presented. According to one aspect, a method implemented in an NF consumer comprises: sending, to an authorization server, an authorization request for a procedure that involves a plurality of NF services; and receiving, from the authorization server, an authorization response for the procedure, the authorization response including information authorizing access to the plurality of NF services. In some embodiments, the NF consumer may comprise an Access and Mobility Management Function (AMF). In some embodiments, the authorization server may comprise a Network Repository Function (NRF). In some embodiments, the authorization response may include one or more access tokens.
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公开(公告)号：US20190021065A1
公开(公告)日：2019-01-17
申请号：US16069381
申请日：2016-03-01
发明人： András Zahemszky , Rashmi Bisl , Zhang Fu , Conny Larsson , Dinand Roeland
摘要： It is provided a method for assisting preloading of a location of a wireless device in a mobile communication network. The method is performed in a communication tracker and comprises the steps of: receiving an uplink packet originating from the wireless device, the uplink packet comprising a source address and a destination address; determining whether a connection database comprises a matching entry corresponding to both the source address and the destination address; transmitting a new connection message when there is no matching entry in the connection database; and storing a new entry in the connection database, the new entry comprising both the source address and the destination address when there is no matching entry in the connection database.
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公开(公告)号：US20240172033A1
公开(公告)日：2024-05-23
申请号：US18549096
申请日：2022-02-24
发明人： Zhang Zhang , Zhang Fu , Min Wang
CPC分类号： H04W28/0257 , H04W28/0268 , H04W76/20 , H04W92/18
摘要： Embodiments of the present disclosure provide method and apparatus for rate control. A method performed by a first terminal device comprises receiving at least one bit rate limitation from a network device. The method further comprises applying the at least one bit rate limitation. A relay terminal device is used to relay communication between the first terminal device and a data network.
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公开(公告)号：US20240098628A1
公开(公告)日：2024-03-21
申请号：US18260950
申请日：2021-12-31
发明人： Zhang Fu , Min Wang , Juying Gan
摘要： Various embodiments of the present disclosure provide a method for relay service code management. The method which may be performed by a user equipment comprises transmitting a message to a first network to request a relay service code. In accordance with an exemplary embodiment, the method further comprises receiving a response to the message from the first network. The response to the message may include the RSC.
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公开(公告)号：US20230388770A1
公开(公告)日：2023-11-30
申请号：US18249568
申请日：2021-10-20
发明人： Min Wang , Zhang Fu , Antonino Orsino
IPC分类号： H04W8/00
CPC分类号： H04W8/005
摘要： A technique for performing direct discovery between a first radio device (100-RD) and a second radio device (100-RD) according to a proximity service of a radio access technology, RAT, is described. The proximity service comprises at least two different models of the direct discovery. As to a method aspect of the technique, the direct discovery is performed according to one of the at least two different models.
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公开(公告)号：US20230363035A1
公开(公告)日：2023-11-09
申请号：US17922991
申请日：2021-04-30
发明人： Congchi Zhang , Zhang Zhang , Zhang Fu , Juying Gan
IPC分类号： H04W76/20
CPC分类号： H04W76/20 , H04W84/042
摘要： There is provided a method at a second user equipment (UE2) comprising receiving, from a first UE (UE1), a relay request message indicating a relay request of UE1. The relay request is for a relay service requested by UE1. The relay request message comprises an indication of a Public Land Mobile Network (PLMN) to which UE1 is subscribed. The method comprises determining that the relay request can be accepted by UE2 in at least one case where: the UE2 is authorized to support the relay service; the relay service is allowed by a current cell of UE2 served by a network node; UE2 is currently in a Radio Resource Control connected state; UE1 subscribes to a same PLMN as UE2; or the network node has provided relevant Access Stratum configurations to UE2. The method comprises transmitting a relay response message to UE1 based on a result of the determination.
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公开(公告)号：US11363671B2
公开(公告)日：2022-06-14
申请号：US16966450
申请日：2018-01-30
发明人： Zhang Fu , András Zahemszky
摘要： Method and apparatus for controlling migration of a Quick User Datagram Protocol (UDP) Internet Connections (QUIC) connection between a server and a neighboring server of a content delivery network (CDN). The server and the neighboring server comprise respective cache memories, are comprised in the CDN and have a same server IP-address. The QUIC connection is identifiable by a connection identifier (CID) and is established to a migrating wireless device having a client IP-address. The method for controlling migration of the QUIC connection comprises receiving static key information representative of the QUIC connection; determining context transfer state information for the QUIC connection; and controlling transmission of a stateless reset token for the QUIC connection based on the determined context transfer state.
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